Publication
Physical Review B
Paper

Empty states near the Fermi level in Bi2Sr2CaCu2O8

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Abstract

Unoccupied states are seen at the Fermi level in Bi2Sr2CaCu2O8 by use of inverse photoemission. They have partial oxygen 2p character, as evidenced by a resonance at the O 2s core-level threshold and by the similarity between the inverse photoemission spectrum and the O 1s absorption edge. These states are likely to be related to the hole states introduced by doping of oxide superconductors. A peak at EF+2.9 eV can be assigned to the unoccupied Cu 3d states (if they are localized) or to the Bi 6p states (for delocalized Cu 3d states). © 1989 The American Physical Society.

Date

01 Apr 1989

Publication

Physical Review B

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